Data Science Multiple choice Questions and Answers-Developing Data Products

1.	Which of the following project is used for calling R products from web?
a.	OpenCPU
b.	OpenDisk
c.	OpenMem
d.	All of the mentioned

Answer: (a).OpenCPU

2.	Point out the wrong statement.
a.	Shiny is platform for creating interactive programs embedded in to web page
b.	Shiny is invented by R folks
c.	Time required to create data products using shiny is more
d.	All of the mentioned

Answer: (c).Time required to create data products using shiny is more

3.	Which of the following statement will install shiny?
a.	install.packages(“shiny”)
b.	install.library(“shiny”)
c.	install.lib(“shiny”)
d.	all of the mentioned

Answer: (a).install.packages(“shiny”)

4.	Which of the following can be done by shiny?
a.	Tabbed main panels
b.	Editable data tables
c.	Dynamic UI
d.	All of the mentioned

Answer: (d).All of the mentioned

5.	Point out the correct statement.
a.	shiny project is a directory containing at least three parts
b.	shiny project is a file containing at least three parts
c.	shiny project consist is a directory containing only one part
d.	none of the mentioned

Answer: (d).none of the mentioned

6.	Which of the following function can interrupt execution and can be called continuously?
a.	browser()
b.	browse()
c.	search()
d.	all of the mentioned

Answer: (a).browser()

7.	runApp() will run the shiny and open the browser window.
a.	True
b.	False
c.	May be True or False
d.	Can't say

Answer: (a).True

8.	Which of the following function is for single checkbox widget?
a.	checkboxInput
b.	dateInput
c.	singleboxInput
d.	all of the mentioned

Answer: (a).checkboxInput

9.	How many components are involved in shiny?
a.	3
b.	4
c.	5
d.	none of the mentioned

Answer: (d).none of the mentioned

10.	All of the styled elements are handled through server.R.
a.	True
b.	False
c.	May be True or False
d.	Can't say

Answer: (b).False